The difference between the Hodgson's Hawk-Cuckoo and the Large Hawk-Cuckoo:
1/ Hodgson's Hawk-Cuckoo
- Smaller size, shorter tail in comparison with the body;
- Patterned back with warm coloration (reddish brown);
- Not well-defined streaks on the underparts;
2/ Large Hawk-Cuckoo
- Bigger size and longer tail compared to the body;
- Plain dark brown back (adult) or patterned back with gray and dark colors (juvenile), not warm coloration (juvenile);
- Well-defined, clear streaks on the breast and/or underparts;